How do I hire someone to help me?

Hey y’all, I’m a therapist located in TX trying to set up my website and want it to be as optimized as possible because more traffic = more referrals = small business can survive (and hopefully thrive). The only marketing agency I’m aware of is Walker Strategy Co. and they claim to help therapists with their SEO. The thing is, they offer a lot of other services in their packages that I don’t need or want, so ultimately it’s a high price tag for me just seeking SEO services.

Does anyone know how I can find someone to help me out? I am listed on several online directories and I suppose those might have room for improvement but I’m most interested in having my actual website optimized. And, no clue if this matters, but I wrote an article as a teenager that is in the first 10 results of Google (if you look up “wearing a ____ at school” but not going to share the exact word for privacy reasons) so that’s tied to my name but not sure if I can somehow capitalize on that.